605670145 has 4 divisors (see below), whose sum is σ = 726804180. Its totient is φ = 484536112.

The previous prime is 605670139. The next prime is 605670161. The reversal of 605670145 is 541076506.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243110464 + 362559681 = 15592^2 + 19041^2 .

It is a cyclic number.

It is not a de Polignac number, because 605670145 - 2¹⁷ = 605539073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 605670145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60567010 + ... + 60567019.

It is an arithmetic number, because the mean of its divisors is an integer number (181701045).

Almost surely, 2^605670145 is an apocalyptic number.

It is an amenable number.

605670145 is a deficient number, since it is larger than the sum of its proper divisors (121134035).

605670145 is a wasteful number, since it uses less digits than its factorization.

605670145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121134034.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 605670145 is about 24610.3666165297. The cubic root of 605670145 is about 846.0812204175.

The spelling of 605670145 in words is "six hundred five million, six hundred seventy thousand, one hundred forty-five".